Oscae lange



(No Model.)

O. LANGE.

LEAP TURNER.

No. 395,064. Patented'Deo. 25, 1888.

@AXA

N. PETERS. PhoxLiehgmphar. wanhingnm D. C.

UNITED STATES PATENT OEETCE.

OSCAR LANGE, OE DRESDEN, SAXONY, GERMANY.

LEAF-TU RN ER.

SPECIFICATION forming part of Letters Patent No. 395,064, dated December 25, 1888.

Serial No. 272,169. (No model.)

To @ZZ whom, t may concern.-

Be it known that l, Osma LANGE, a snbject ot the King of Saxony, residing at the city of Dresden, in the Kingdom ot' Saxony and German Empire, have invented a new and uset'ul lm n'oyement in Leat-TurninU'A 3- l' paratus, ot' which the following is a specification.

My presenti in Vention relates to that class of apparatus by which pages ot' notes and i other similarly-detached sheets ol' paper are turned over as required, and will be fully understood from thel annexed drawings and tollowing' general description, and subsequently pointed out in the claim,

Figure l is a side View ot' my newly-in- Vented page-turning apparatus.

Fig. 2 is a plan View of the same.

Fig. Il is a detail View illustrating a part of the mechanism.

a. designates the frame of the apparatus, which is supported by a note-rest. l

c designates a shaft secured in the frame a by the screw b. l'pon this shat't are mounted six revoluble arms, d. Each of these arms carries two needles, e, which stand at right angles to the said arms and parallel to the plane of the frame u.

f designates springs or gum bands, which are attached by one end to the trame u and by the other to the shorter ends ot thearmsd. A j" also designates a series ot' springs tastened to the Atrame u and working' upon the longer end ot' the arm d, so that the constantl tendency of both the gum bands and the springs is to turn the arms d from the right to the let't; or, tor the same purpose, a spring' wound arouml the shaft c and pressing upon the arm (l may be used, as illustrated by j"e ot' Eig. Il. turned to the right, they are held in that position in thenotehes /z ot' the plate i by the slide g. Upon the. slide 'o are pins corresponding toV the arms (Ikone pin tor each arm. Near the slide g is another slide, I, held bythe spring m. Upon this slide Z is pivoted a bell-crank, n, whose motion is controlled by the spring p. The slide Z is attached to a conyenient treadle by the cord or wire 0. I

To use this apparatus, the arms d are all. rst folded to the left. Then the lowermost one is folded back to the right into the proper notch of the plate i and secured by t \\'hen the arms dare i the proper pin of the slide g, To aecom- 1 plish this the operator presses down the end of the bcdl-cranlc n upon the slide Z, so t-hat the end of the bell-crank will push away the t pin s and allow the pin to come into place. The last leat' to be turned is now laid on this arm d and its needles e. The next arm is then brought' over and secured in the same ,t way, and the next sheet laid on it, and so on until all haye been so placed. When it; is desired to turn a leaf, the operator presses down the treadle attached by the cord or wire o to the slide I, then the end of the bellcrank n, engaging one ot the pins of the slide g, draws it down tar enough to release the first arm d,which, by the resilience ot' the gum band f and the springf, will be immediately thrown oyer to the left, turning over the leat` which it carries with it. Then the pressure is remoyed from the treadle, the spring m returns the slide Z to its original position, and the bell-crank n, having returned to its original position by reason ot` the resilience ot' the springI p, another page maybe turned, and so on in the same way until all the pages haye been turned.

Yhat l claim as my inyention, and desire to secure by Letters Patent, is-

The combination,with the t'rame mand the shaft c, secured thereto, ot' the arms d, mounted upon said shatt rf, the needles e, tastened to said arms d, as speciii'ed, the rubber bands f, attached by one end to the said f trame o and by the other to the said arms d, the spring f', attached by one end to the said Vframe o. and acting with the other end upon the arms d, the plate i, fastened upon said l frame uv and having notches 7i, as specitied, the slide g, having pins 7;, the slide Z, moving upon said trame o near said slide g, the spring n1, attached to said slide [and controlling the motion thereot', the bell-cranl n, attached to said slide I, the spring p, attached to said slide and governing the motion of saidbellcrank n, and the cord o, attaching the slide l to a treadle, all substantially as and for the purpose set t'orth.

In witness whereof I hereunto set my hand in presence of two witnesses.

OSCAR LANGE.

lOO 

